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Cited by 390

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Modified gravity and its reconstruction from the universe expansion history

Open access
Nojiri, Shin'ichi, Odintsov, Sergei D·2007·Journal of Physics: Conference Series

Abstract

We develop the reconstruction program for the number of modified gravities: scalar-tensor theory, f ( R ), F ( G ) and string-inspired, scalar-Gauss-Bonnet gravity. The known (classical) universe expansion history is used for the explicit and successful reconstruction of some versions (of special form or with specific potentials) from all above modified gravities. It is demonstrated that cosmological sequence of matter dominance, deceleration-acceleration transition and acceleration era may always emerge as cosmological solutions of such theory. Moreover, the late-time dark energy FRW universe may have the approximate or exact ΓCDM form consistent with three years WMAP data. The principal possibility to extend this reconstruction scheme to include the radiation dominated era and inflation is briefly mentioned. Finally, it is indicated how even modified gravity which does not describe the matter-dominated epoch may have such a solution before acceleration era at the price of the introduction of compensating dark energy.

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Metadata

Authors
Nojiri, S., & Odintsov, S. D.
Venue
Journal of Physics: Conference Series
Published
2007-05-01
Volume
66
Pages
012005
ISSN
  • 1742-6588 (ISSN-L)
  • 1742-6596
OpenAlex
W2593057630
Cited by
390
References
2
FWCI
109.67
Type
conference paper
Language
en
Open access
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CoChat. (2026). Citation check: Modified gravity and its reconstruction from the universe expansion history. https://app.cochat.ai/papers/10.1088/1742-6596/66/1/012005
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Nojiri, S., & Odintsov, S. D. (2007). Modified gravity and its reconstruction from the universe expansion history. Journal of Physics: Conference Series. https://doi.org/10.1088/1742-6596/66/1/012005

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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